baber/WOPTO huggingface dataset:
Patent GB-1340290-A (GB)
Title: Dynamoelectric machine liquid cooled rotor
IPC: H02K9/00
Filed: 1972-06-16
Abstract: 1340290 Cooling dynamo-electric machine rotors WESTINGHOUSE ELECTRIC CORP 16 June 1972 [28 July 1971] 28240/72 Heading H2A In a dynamo-electric machine rotor 20, shown as that of a large turbine generator, having shaft portions 28 on at least one of which is a coolant liquid, e.g. water distributing chamber 37 connected by connectors 36 to coolant liquid passages of a winding 24 or a body portion 23 of the rotor, the one shaft portions having a coolant liquid axial central bore 29 connected by at least one radial passage 38 to the chamber 37, the bore contains a corrosion-resistant, e.g. stainless steel, liner 43 which is wider to permit its differential thermal expansion relative to the one shaft portion includes at least one bellows 44 having substantially rectangular crosssection convolutions 47 whose cylindrical outer surfaces 48 engage the bore surface. Each bellows has welded to it at one end only an internal tube 49 having radial holes 51 to flush any stagnant water, and the liner is joined to similar liners 42 in radial passges 38, 39 with the bellows interposed therebetween.  Otherwise the generator is conventional, comprising a laminated stator core 10 having radial cooling ducts and clamped in gas, e.g. hydrogen filled housing 14; in slots of the stator core is a winding 16 liquid cooled, e.g. by water, via manifolds 17. The rotor bore 29 also contains axial electrical leads 30 connecting to the winding 24 via radial leads 31, and the water is introduced to this end of the rotor through an annular passage 32, to flow through a radial passage 34, an annular distribution chamber 33, connectors 35, the winding 24, and thence through the foregoing structure to a stationary annular discharge chamber 40.
Patent GB-1016512-A (GB)
Title: Preparation of a new type polymer silicopolypropylene
IPC: C08G77/442
Filed: 1962-07-23
Abstract: Polypropylene containing silicon in the polymer chain, e.g. as a graft, is made by polymerizing propylene in the presence of a catalyst consisting of (1) an organo-aluminium compound, (2) TiCl4, and (3) at least one organic silicon compound having a Si-H bond. The silicon compound is preferably selected from <FORM:1016512/C3/1> where R, R1, R11, R111 represent alkyl, aryl, alkoxy radicals, or halogen atoms, <FORM:1016512/C3/2> where R represents alkyl, alkoxy radicals and n is an integer greater than 2, and <FORM:1016512/C3/3> where R, R1, R11 represent alkyl, alkoxy radicals, hydrogen and halogen and n is an integer greater than 1.  The polymerization may be effected in bulk or in the presence of an inert diluent. Exemplified catalyst systems are (1) (C2H5)3Al, TiCl4, and polymethylhydrosiloxane, (2) (C2H5)3Al, TiCl4, and triethoxysilane (3) (C2H5)3Al, TiCl4, and (C2H5)3SiH, and (4) (C2H5)3Al, TiCl4, and triphenylsilane. The polymers are recovered by conventional techniques such as addition of acid and methanol.
Patent GB-627585-A (GB)
Title: Improvements in and relating to method of and apparatus for drawing fibers
IPC: C03B37/09
Filed: 1946-09-20
Abstract: 627,585. Melting furnaces. SCHLEHR, W. R. Sept. 20, 1946, No. 28261. [Class 51 (ii)] [Also in Groups XXIII and XXXV] An air lock for charging pellets of raw material into a crucible whose internal pressure is above atmospheric (see Group XXIII) comprises two discs 16, 17 intersecting the hopper mouth 25 and mounted, with their apertures 23, 22 displaced 180 degrees, on a common shaft 18 driven through worm gearing by a motor 26 energized when the level of molten material in the crucible drops below the required minimum (see Group XXXV).
Patent GB-289715-A (GB)
Title: Improvements in or in connection with steam superheaters, feed water heaters, economisers and the like
IPC: F22G3/00
Filed: 1927-10-25
Abstract: 289,715. Evennett, F. C. F. Oct. 25, 1927. Mounting and supporting superheaters.-The U-tubes 11 of a superheater, feedwater heater, or like apparatus are supported in longitudinal apertures 14 in a sling 12, the tubes being secured in the apertures by wedges. The wedges 17 may bear directly against the legs of the U-tubes or they may engage in grooves in blocks 15 bearing against the legs. A wedge may consist of two members 18 engaging with each other and bearing against the legs of a tube. Two U-tubes may be inserted in the same aperture and secured by a single wedge which is inserted between the tubes, the legs of the tubes being spaced apart by distance pieces.
Patent GB-213855-A (GB)
Title: A new or improved cover for tobacco pipes
IPC: A24F5/10
Filed: 1923-11-13
Abstract: 213,855. Dunhill, Ltd., A., and Dunhill, A. Nov. 13, 1923. Drawings to Specification. Tobacco pipes and stoppers. - A thin pliable perforated disc of asbestos or other non-inflammable material, slightly larger in diameter than the pipe bowl, is pushed down on top of the tobacco charge to prevent accidental spilling of ash or too rapid burning of the tobacco in a wind.
Patent GB-1275677-A (GB)
Title: Apparatus for treating tubular fabrics
Inventor: ARONOFF EDWARD ISRAEL
IPC: D06H7/08
Filed: 1969-06-26
Abstract: 1275677 Finishing fabrics E I ARONOFF 25 June 1969 28585/71 Divided out of 1275675 Heading D1S The subject matter of this application is wholly included in that of copending Specification 1275675, but the claims relate to means, in an apparatus for opening a tubular fabric, for flattening out the edges of an advancing web formed in opening, and for maintaining the edges in a flattened condition.
Patent GB-697207-A (GB)
Title: Improvements in or relating to a spectrum farming device
Inventor: MILLER WILLIAM CURTIS
IPC: G01J3/16
Filed: 1951-12-06
Abstract: 697,207. Spectroscopic apparatus. BECKMAN INSTRUMENTS, Inc. Dec. 6, 1951, No. 28615/51. Class 97 (i). A monochromator, or other spectroscopic apparatus comprises a Fery prism having a spherical front surface which is refractive and a spherical rear surface which is reflective, the centres of curvature of these surfaces being spaced apart along the circle diagram of the prism on which diagram is also an entrance slit located so that rays therefor are incident at substantially equal angles i on the front surface and are refracted thereby so as to be substantially normal to the rear surface whence they are reflected, refracted once again, and form a spectrum, the entrance slit being curved to a radius R equal to n<SP>2</SP>. f.cotan i/2(n<SP>2-1</SP>), where f is the focal length of the prism and n its refractive index, whereby a substantially linear image of the entrance slit is produced. Fig. 1 shows a curved entrance slit 12 light from which is reflected by a mirror 16 to the prism 10 having spherical front and rear surfaces 21, 22. This prism acts as a collimator and forms a spectrum, after reflection again at the mirror 16, adjacent the linear exit slit 13. The curvature of the entrance slit compensates the astigmatism introduced by the Fery prism.
Patent GB-923715-A (GB)
Title: Porous structures and production thereof from mineral wool
IPC: C04B26/12
Filed: 1959-08-21
Abstract: 923,715. Porous structures from mineral wool. KAHLER & CO. I/S. Aug. 21, 1959 [Aug. 26, 1958], No. 28710/59. Class 42 (2). A method of producing porous plates or bands of mineral wool fibres comprises forming a felt of mineral wool fibres, e.g. glass wool, stone wool or slag wool, having an adhesive agent producing adhesion between the individual fibres, subjecting the felt to mechanical division in such a manner that tufts are obtained in which the individual fibres in the interior of each tuft are approximately parallel and, after the said division, if the adhesive agent is not hardenable, adding an unhardened binder to the tufts or to a felt of the tufts, after which the divided material is collected to form a layer and the agent or binder is hardened, the hardening being, if so desired, carried out in connection with a pressing operation. The felt may be divided by means of a rotating brush cylinder to form tufts in the interior part of which the fibres are oriented substantially in one direction for each tuft. The tufts may be collected on a wire gauze conveyer moving above a suction box; or alternatively by lifting up the tufts against the lower surface of the wire gauze by suction from a suction box on the upper side of the gauze. A suitable agent or binder is a hardening resin of the phenolformaldehyde-type which, when used as the agent, may be sprayed in aqueous solution on to the original fibres. Hardening may be effected by passing hot air as a stream through the fibrous layer on the wire gauze conveyer. A thermoplastic material or a water-soluble glue may be employed as the agent or binder, in which case hardening consists in cooling and drying respectively. Unhardenable agents are sulphite lye, sulphate lye, and molasses.
Patent GB-279899-A (GB)
Title: Push-pull connection for thermionic and like valves
IPC: H01J21/12
Filed: 1927-10-29
Abstract: 279,899. Siemens & Halske Akt.-Ges. Oct. 30, 1926, [Convention date]. Vacuum tubes.-The individual characteristic curves of thermionic valves are made asymptotic to the grid-voltage axis by varying the electron path along its electrode system, Fig. 6, for example by varying the mesh e of the grid g or by varying the distance of the grid from the filament k or anode a. The slope of the characteristic curve should amount at zero grid voltage to approximately half the slope of the rectilinear portion.
Patent GB-521143-A (GB)
Title: Improvements in and relating to wind tunnels
IPC: G01M9/02
Filed: 1938-10-06
Abstract: 521,143. Wind tunnels. TRIGGS, W. W. (Akt.-Ges. Brown, Boveri, & Cie). Oct. 6, 1938, No. 28966. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 11, 1939.] [Class 4] The compressor for producing the stream of air in a wind tunnel is driven directly or through electric transmission from a constant pressure gas turbine. A starting motor may be used for augmenting and regulating the turbine at low outputs, or the starting motor may be used alone for outputs up to “ of the maximum after which the turbine may be used alone. Fig. 1 shows a closed wind tunnel in which the air density may be varied by raising or lowering the mean pressure in it. A gas turbine 9 drives an air compressor 10 for supplying air to a combustion chamber 11 which feeds the turbine, the common shaft being coupled to an air compressor 2 in the wind tunnel. A starting motor 12 is provided. The use of a gas turbine enables the tunnel to be used with widely varying wind velocities. An open tunnel is described in which the air sucked through the test chamber by the compressor is fed to the combustion chamber and so to the turbine. Fig. 4 shows a modification in which the turbine drives an alternator 21 electrically coupled to a synchronous motor 23 which drives the air compressor 22 of the wind tunnel. In this case the air supplied to the combustion chamber 16 from the compressor 10 is preheated in a chamber 24 by the exhaust gases from the turbine 9.
Patent GB-675367-A (GB)
Title: Improvements in or relating to lighters
IPC: F23Q2/34
Filed: 1949-11-11
Abstract: 675,367. Frictional lighters. ROLLINSON, E. W., (Ronson Art Metal Works, Inc.). Nov. 11, 1949, No. 28992/49. Class 75(iii) The fuel-charging opening of a lighter extends completely across an exterior wall of the casing, and is closed by a pivoted plate 13, which is supported on a member positioned within the casing to extend towards said opening, said plate normally seating against the edges of the opening to seal the fuel chamber, but being movable along its supporting member away from the casing so that it can be pivoted about said member to expose the fuel chamber, and being spring-urged towards the casing 1 in both its closed and its open position. A packing ring 15 of neoprene or like resilient material which seats inside a peripheral flange 16 of the plate 13 is pressed into tight engagement with the lower bevelled edge 14 of the casing 1 by a compression spring 18. A central, inwardly directed hub 17 of the plate 13 houses said spring, and both slidably and rotatably surrounds a sleeve 10, which is fixed to the lower end of the flint tube 7 and which receives a closure screw 9; the spring 18 encircles the sleeve 10 and its ends act respectively on a flange 19 at the base of the sleeve 10 and on a sealing washer 20 which seats against the inwardly turned upper end of the hub 17. To expose the fuel chamber the plate 13 is first pulled away from the casing 1 against the action of the spring 18, and then turned through 90 degrees; on releasing the plate it is held in its open position by said spring. In a modification (Fig. 4, not shown), the flange 19 of the sleeve 10 is formed part-way up the sleeve so that a chamber for spare flints is formed between said flange and the head of the closure screw 9.
Patent GB-388703-A (GB)
Title: A process for the production of tetrahydrofurfuralcohol
IPC: C07D307/12
Filed: 1932-10-17
Abstract: Tetrahydrofurfuralcohol is obtained by catalytic hydrogenation of furfural in the liquid phase and in absence of water, at a temperature of about 120-200 DEG  C. and a pressure of about 100-300 atmospheres.  As catalysts metals of the 8th group, particularly nickel are preferred, but the known methanol-synthesis catalysts may also be used.  Wetting &c. agents.--The tetrahydrofurfuralcohol may be used with or without purification as a solvent for fats, waxes, resins, lacquers, &c., or in aqueous solution with or without additional ingredients as a washing, cleansing, or wetting agent. Examples of such agents contain as additional ingredients (1) Marseilles soap, (2) curd soap, (3) the sodium salt of sulphonated lauryl alcohol, (4) trichlorethylene, (5) xylene.ALSO:Tetrahydrofurfuralcohol is obtained by catalytic hydrogenation of furfural in the liquid phase and in absence of water, at a temperature of about 120-200 DEG  C. and a pressure of about 100-300 atmospheres.  As catalysts metals of the eighth group, particularly nickel are preferred, but the known methanol-synthesis catalysts may also be used.
Patent GB-298638-A (GB)
Title: Improvements in thermionic valves
IPC: H01J21/02
Filed: 1928-10-09
Abstract: 298,638. K³chenmeister, H. J. Oct. 9, 1928. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 15, 1928]. Vacuum tubes.-A valve for use as an amplifier, transmitter, and in measuring instruments has a grid and an anode constructed as helically-coiled bodies of equal pitch and diameter, the convolutions of the grid being arranged between those of the anode each of the convolutions of both electrodes 'being connected by a separate conductor with the respective leading-in wire; the anode consists of a metal, strip and the grid is of wire. The convolutions are widely spaced apart. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the valve shown in Fig. 4 (Cancelled) in which the control electrode consists of cylinders 4, and the anode of discs 5 mounted between the cylinders and around a filament cathode 6. In another valve a perforated anode is mounted between a cathode and a control electrode maintained at a negative potential. This subject-matter does not appear in the Specification as accepted.
Patent GB-292646-A (GB)
IPC: C08G63/127
Abstract: 292,646. British Thomson-Houston Co., Ltd., Warren, H. W. H., Newbound, R., and Ward, A. T. Feb. 25, 1927. Moulding gums and resins. - Synthetic resins of the glyptal type are moulded under pressure at 120-170‹ C. It is preferred to use moulds lined with a material, such as aluminium or vitreous enamel, which does not produce discolouration, or alternatively to use moulds made of aluminium or stainless steel. Specification 3271/13, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-521192-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: B60L15/12
Filed: 1938-10-10
Abstract: 521,192. Master control of motors. GENERAL ELECTRIC CO., Ltd., and CROFT, E. H. Oct. 10, 1938, No. 29304. [Class 38 (iii)] A drum 21 advanced by an electromagnetic ratchet 53 follows up the movement of a pedal operated drum 27 under the control of a current limit relay CLR, having an operating coil 8 in circuit with the motor 1. At advanced positions of the drum 27 an opposing coil 101 on the relay CLR is partially energized so as to give higher acceleration of the motor. A normally energized opposing coil 102 on the relay is de-energized in the field-weakening positions of the drum 21 so as to give lower acceleration in these positions. The coil of the ratchet 'drive 53 is energized through a frictional drag sector 51, so that any backward movement of the drum 27 causes segment 30 thereon to separate from finger 40 and so arrest further forward movement of the drum 21. The relay CLR may also include the feature of rapid notching under certain conditions as described in Specification 521,195. Specification 480,453 also is referred to.
Patent GB-1331888-A (GB)
Title: Electronic fuel injection systems
IPC: F02D41/32
Filed: 1972-06-22
Abstract: 1331888 Electronic fuel injection systems for I.C. engines GENERAL MOTORS CORP 22 June 1972 [1 July 1971] 29316/72 Heading G1N In an I.C. engine, intermittent fuel injection system, the duration of the injection pulses, produced at a rate proportional to engine speed, is varied in dependence upon engine speed by providing a speed voltage S which varies unidirectionally from a base level Lb at the termination of each injection pulse C to a peak level Lp at the initiation of each succeeding pulse C, such that the peak level bears an inverse relationship with engine speed, the peak level at the initiation of each pulse C defining the amplitude of a compensation voltage K which is utilised to control the bias voltage at a point 118 of the injection pulse generator 88 to thereby control the duration of the injection pulses. As shown in Fig. 1, the injection pulse generator 88 consists of a monostable multivibrator, the injection pulses also having their duration determined by intake manifold pressure via an inductive transducer 94. The output of generator 88 is applied to a speed compensator 144, Fig. 5 (not shown), which includes the speed voltage generator, the compensation voltage generator and a bias voltage modifier. The speed voltage is developed across a capacitor which is charged from the termination of each injection pulse to the initiation of each succeeding pulse at which instant it is discharged. The compensation voltage generator compares the speed voltage with a reference voltage to control the state of a capacitor across which the compensation voltage IC is developed. Fig. 6 shows the injection pulses C, the speed voltage S and the compensation voltage K at three engine speeds.
Patent GB-152650-A (GB)
Title: Process of and retort for distillation of fuels
IPC: C10B1/04
Filed: 1920-10-18
Abstract: 152,650. Colombo & Ing. de Bartolomeis, and Bartolomeis, R. de, (Assignees of Soc. Italiana Asfalti, Bitumi, Catrami E. Derivati A.B.C.D.). Oct. 18,1919, [Convention date]. Coking processes; retorts.-In the distillation of coal, peat, and lignite, in a vertical retort, a heat-transferring combustible gas, free from air or oxygen, is supplied through inlets 12 at the base, and the heating is maintained by continuously supplying air through openings 10 in the zone wherein the distillation is practically complete. The retort comprises an upper section 1 which may be hearted electrically at the zone 7, and a lower section 4 in which the coke is cooled; hot combustible gas may be supplied through openings 8. According to the Specification as open to inspection under Sect. 91 (3) (a), liquid hydrocarbons may also be injected through the openings 8, and the gas and steam are supplied through openings 12. This subject-matter does not appear in the Specification as accepted.
Patent GB-1472633-A (GB)
Title: Microtome
IPC: G01N1/06
Filed: 1974-07-02
Abstract: 1472633 Microtomes LKB-PRODUKTER AB 2 July 1974 [16 July 1973] 29380/74 Heading G2J In a microtome, oscillations of a moving member are damped by electromagnetic induction in an eddy current disc movable along the axis of an annular permanent magnet assembly.
Patent GB-1118428-A (GB)
Title: Improved belted tyre
IPC: B60C9/20
Filed: 1966-06-30
Abstract: 1,118,428. Pneumatic tyres. CONTINENTAL GUMMI-WERKE A.G. 30 June, 1966 [27 July, 1965], No. 29388/66. Heading B7C. [Also in Division B5] In a belted tyre wherein the tread 1 is of natural or synthetic rubber and contains the belt 2 the carcass 5 is of polyurethane and is devoid of any reinforcement except for bead cores 4. The tread is bonded to the carcass. A preformed belted tread may be inserted in a mould and the tyre completed by pouring polyurethane into the mould.
Patent GB-296592-A (GB)
Title: Improvements in or relating to sheet-feeding and rewinding mechanism for music sheets
IPC: G01F1/37
Filed: 1927-11-03
Abstract: 296,592. Wade, H., (Mills Novelty Co.). Nov. 3, 1927. Winding-mechanism.-In electrically operated instruments, such as that described in Specification 142,950, a brake applied to the take-up roller for applying tension to the music sheet during the rewinding operation is automatically released during the winding or playing operation. As shown, the brake block 10, is pivotally mounted at 11<b> upon a lever G which is itself pivotally mounted at 12 on the frame A, and is connected by a link 13 to the arm I<3> of the contact-carrying bar I. The electric motor F is reversed at the end of the playing operation by a special perforation in the tune-sheet and contact-finger; a specially-shaped dog 7 is then tripped by a finger L on a lever K pivoted at 3 to the arm I<3> so that the dog engages a projection on the lower wheel of the gear-train H for rewinding in the manner described in the prior specification. The arm I' is at the same time drawn down by the spring M and the contact fingers carried by the bar I are withdrawn from the music-sheet. The link 13 slides through a hole in the lever I<3> and a spring 16 acting upon an adjustable collar 13<a> presses the brake upon the flange of the take-up roller.
Patent GB-424293-A (GB)
Title: Improvements in and relating to flexible electrical conductors and in particular to telephone leads
IPC: H01B7/24
Filed: 1933-10-24
Abstract: 424,293. Preventing tangling of flexible conductors. BOARDMAN, T. V., 14, Cockspur Street, Charing Cross, London. Oct. 24, 1933, No. 29461. [Class 36] A sheath for preventing tangling and kinking of a flexible conductor such as a telephone cord consists of a rubber or other flexible and elastic tube formed throughout its length with a normally closed straight slit through which the conductor may be sprung. The tube may be of flattened cross-section and, to increase the flexibility of the tube, its flat portions may be perforated and be thinner than the curved portions. The edges of the walls of the tube adjacent the slit may abut, overlap or dovetail together. In the arrangement shown, a flexible conductor 7 is surrounded by a flattened tube 1 having a longitudinal slit 5 formed throughout the length of one of its curved walls 2 so that the edges of the slit abut. The flat walls of the tube are thinner than the curved walls 2 and are formed with ribs 3 which are provided with perforations 4.